Concrete-mixing machine.



jH. J. s. ALEXANDER. GONCBETE MIXING MACHINE.

LYPLIUATIOH YILBDBB. 19, 1910.

Patented sept 2o, 1910.,y

5 SHEETS-SHEET 1.

` H. J@ AUBXAND'BB..

GONGBE'IE MIXING MAGHREB.

' Jrfuonms runen rms. 1s, mes

970,870. Y 'Patented sepnzamo.

' K Azramq 5;. J. J. ALEXANDER. (Sexcams Mmm MACHINE. .f-yPLm'uxoxHanru-9.1mm Y 1 l n Patented Sept. 20,'1910.- l

.han

- gnam UNITED STATES PATENT OFFICE.

CHARLES L. BERRY, OF YOUNGSTOWN, OHIO.

CONCRETE-MIXNG MACHINE.

Specification of Letters Patent.

1'0 antw/mm 'it lmay concerti: l

Be it known that, I. IIAYi-:s J. J. Ann-XAN- iuui. :i citizen of theUnited States. residing` ut Youngstown,Y in the county of Mahoning undState of Uhio. have iurented certain new :uid useful luiprorcinciitsinCoiicretef Mixing Machines, of which the follo'wiiig is :ispecification.

The present invention relates tol iiieaiis-fot mixing concrete or otheranalogous niatei rizils, and the primary object is to provide :i

`structure. hy in ezins of which concrete can lie continnouslv niixed.and delivered, thereby avoiding; thcneccssity 0i' stopping the` nun-lunefor receiving the uninixed unite# riails, und for deiifveringtheconcrete. after A further and iniptirta'nt,v ohiect is to provide astructureV thiitnI siiuple and ceinpuct, so that it will occupy hutlittle space, and

-can he readily transported from pince to plate. y y

(lne embodiment of the invention is disclosed in the accoiupuni'ingdrawings, but it will be obvious froni nu inspection of the' cluinishereto appended that tht` in\-'ent .ion

is by no ineens limited to the exact structure set. forth. y

kIn seid drawings: Figure 1 is a side elevation of the mixer. Fig. 2 is:i top plan view thereof. Fig. 3 is :i vertical sectional view throughthe structure. Fig. 4 is u horizontal sectional view. Fig. 5 is :ihorizontal sectional view. on the line 5m?) ot" Fig. 3.A Fig. 6 is adetail vertical sectional view through the lower portion of the nui#chine. Fig. 7 is a detail perspective view of aY section of the lowersupporting spider.

F'G. 8 is :i detail View of one of the contro ling gates..

Similar reference uuniemls designate corresponding paris in the severalfigures of4 side of the inner cusing.

toni is furthermore provided with a central hearingy step 19. I y yArranged cent-rally in the outer easing is :i cylindrical inner casing20 having :in open b ottoni disposed above and in spziced relution tothe bottoni wiill 15 oi the outer cas- Patented Sept.. 20,1910.'Application ted February 19. 1910. Serial No.f544.919. v- 1 ing,oriuiufbr what muy he termed ii receivin;r ciniiuber 21. This innercasing;` is snpported by :x .spider s';.rii1.:tiix'e comprising an outerfriisto-conicril riin ".12 having inwrirdlv extending :mns :23 andcurved nungen fl that: are fitted against :init suitably secured `to thelower portion of the cylindrical casing Q0. The iii-ins Q3 are providedwithl `oluiositely extending downwardly incl-ined flanges 2.3 that ornimouths communi-:utingl with the receiving chamber 21, as hereinlzitterexplained. AThe rim 2:2 registers within`the hopper bottoni l1.

The' :irius u `cinistit'ute, theI lower ends or buses ot partition walls9G that :ire secured lo Tsuiilni'iiis :incl extend rudi' lly between theouter :ind inner cusingis. th forming ninterinl holding'roinpzirtiiu-nts. which communicate with the receivingy ehuiuber 21,through The. passage of material to said chuniher 'from the ningu-V thebefore mentioned mouths.

s controlled by u plurality of vertisnidiii'g gutes 2T that operanteover the mouths, .ind have vericully disposed langes 2S that slide uponthe inner casing 20, the

ends ot' these flanges operating in guidcwiiys 29. formed hy theoverhainging ends of the .spider thinges 2l. 'lhe gutes are ope-ratedand helii ni diti'erent positions by means otV hangers comprisingconvergent :mns 30,` se.- cured to the gzitcs 2T und connected at.'their upper ends to links or rods 31, which slidiibly pus-s through an:ingle bur in the. form ot'l un :inuuluil ring :itl secured to the outerNuts 33, adjust:- ably threaded onthese rods and bearing upon the :ingleharserve, to. hold the gutes ut. lilt'erent heights. l f

For the purpose of mixing und ecvsiting thc material in the inner casing20. :i screw or worin 3l, is eiiiployei'l within sind inner eus-ing, undis carried by n. sliuit 35, the

lower end of which is journaldd in the box lf?, the upper end carrying:i supporting collzir 3G secured thereto, und operating over a. box 3i'that is fastened to the cross hars 11 of the t'iuuie. Bearing halls 3Sare preferably, though not necessurily, interposed between the iiunihcrs36 :ind Si', und it! will thus be lupper surface of thesaid screw.

evident that the weight of therscreivnnd the thrust thereof is takenentirelyv by this upper bearing. The said' screw is'provided with a.pluralityy of inner bowed` detlector blades 39 of' slieetnietal, whichare 'secured at inter-k vals to the shaft 35, und are located upon theppm sitely disposed detlectorbladesl in the form of straight nictalstrips :u'o preferably mounted on the outer portions of thc'soi'civ orworm. ltwill be noted thatthe sfiid eltrating and mixing screw or wormextends' below the lower end of thevinnei' casing 20, and thus into thereceiving chamber :21, and its lower end is preferably provided with ascraper blade 41, whichvoperates upon the.

wear plate 18 bottom 15'.

` The conveyor and mixer is driven from a drive shaft 42 which isoperated 'from any Suitable source. of power. This drive shaftr onl theupper face 'of the is provided with a sprocket wheel 43, around whichpasses a sprocket chain 44. The lat'- ier also passes around a sprocketchain 45,

yfixed to a countershaft i6 that is journals-:l

in the upper portion of tlierame. The

i countcrshaft carries a beveled gear 47 meshmachine is as follows.

ing with a beveled `.vorin shaft ofY The concrete or other material,after it. has been mixed and elevated, is delivered through avdischarge.l opening 49 vformed in one side of the upper portion ofthe'iuner casing 20, and associated with this discharge opening, is adownwardly inclined chate 50. A controlling gate 5l operates over thedisgear 48 mounted on the lcharge opening, and is connected by a link 52with one end of a lever 53. The lever is `iulcriinied between its ends,as shown at 54, on the supporting frame, andl its outer end has anactuating link 55 suspended therefrom. y

AIn oi'der to supply the necessary moist-nre Vto the material, a pipe56, leading from any suitable source of Water supply, is connectedy to apipe 57 surrounding the lower portion of the outer casing, and this )ipe57 has a plurality of inwardly exten ing delii-ery nozzles 58 thatcommunicate with the rc-` ceiving chamber 21. n f v Briefly described,the operation of the` The different elementary materials are placedinthe dierent magazines formed between the inner and outer casings andthe proportions fed to the conveyor and'mixercan be governed byyelevating the different gates to a greater or less extent. -Havingsupplied the magazines with the -materials,'the machinev is placed inoperation, a proper amount of Water is' f admitted to the pipe 56 andthe worin or screw will thereupon remove the materials as they gravitateinto the receiving chamber and carry them upwardly in the inner casing.During this 'upward movement, they videro are thoroughly agitated, and'mixed, and are linally delivered through the discharge opening 49 downthe chute 5G, into any de# lsirable receptacle. It. will hc evident thatbyv keeping the magazine supplied, the operation of the machine will hecontinuous,

.and no stoppage required' tosupply materims and discharge the product.

Ioreover, thostructurc is exceedingly simple and compact, so that it canbe built at comparatively small cost and vcan be readily transportedfrom place to place, as need may require. i

From the foregoing, it is thought that the construction, operation andmany advantages-oi the herein described invention will be apparent tothose skilled in the art with#r out further description, and it will beunderstood thatvarious changes in the size,

shape, proportion, aadminor details of construction, may be resorted towithout de#V parting from the spirit. or sacrificing any of [theadvantages of the invention.

I claim: Y

1. In a machine of the character set forth, the combination with acasing, of a rotaryL mieraiid elevator operating therein, a pluralitf:of material holding magazines having discharge mouths delivering to thelower portion of the casing, and :means for individually controlling themouths.

2. In a niachineof the character sei'. forth,

the combination with an outer casing having a bottom, of an inner casinghaving an openk llower end terminating short of the bottom,

forming a receiving chamber, a mixer andv elevator operating inthe innercasing and in the receiving chamber, ay lurality of partitionsinterposed between ie outer and inner casmgs and v.forming materialholding magazines communicating with the receiving chamber, and ineensfor governing the p* ssage of inaterialfroni the magazines into thechamber.

3. Ina machine of the character set' forth, the combination with anouter casing having a bottom, of an inner casing having an open lowerend terminating short of the bottoni, forming a receiving chamber, amixer and elevator operating m the inner casing and in the receivingchamber, and av plurality of partitions interposed between the outer andinner casing-s and forming material holding magazines communicating withthe receiving chamber, said partitions having downwardlyinclinedvdeflector flanges.

4. In a machine of the character set forth,

the combination with an outer casing having a bottom, of an inner casinghaving an open lower end terminating short of the bottom, foi'mingareceiving chamber, a mixer and elevator operating in the inner casingand in the reciting chamber, a plurality partit-ions interposed betweenthe outer and inner casings and forming material holdingeoureyei'foperating in the inner casing, paruiterpc'iserl between theou. material holding inagnnzmes communicating n niountoiion the-innercrisi ythe combination with :i freine,

' open lower end, a mixer nndconveyer o rinner casing having an uppergaies operating herr ywithin 'the outer casing unil terminating 'holdingcompartments, gates for controlling upper endY of the shaft.

` omero l partitions each having orpositely extending and downwardly incined deflector flanges forming contracted mouths, and. gutesAcontrolling the mouths. 5. In a machine of thechurnct-er set forth, thecombination with :in outer casing, of an inner-casing locnted (herein,a, mixer and titions interposed between the coniuge and formingmix'teriul holding magazines that communicate .with the inner casing,and controlling gates mounlccl on. said; inner casing for governing thepassage of mixte.- riul from the magazines. f

6. In a machine of the character set. forth, the combinationr with anont-cr casing, of au inner casing located therein and having :in

atingin the inner casing eindextending into ilie'lovser end of the outercaeing, partitions nge and forming with the lower endo.. he innercasing, vertlcizlly sliding gates controlling such communiciirion,hangers for eizsdendinv Said garce, and vactuating and holdingevices ngand connected` to the hangers.

7.. In a machine of the character set forth, heronilnnatmn with :inouter casing, of an 'delivery :md o lower inlet. portion arrangedwit-hin Y the outer casing, partitions interposed between the msings andforming material holding?r mug.-izines :said partilions havingoppositely disposed delico-tor ihn s', rei'firrzlly sliding litho(hinges, :ind n rotary conveyor and mixer arrnngixl within Ain andterminating short the inner casing. y

8. In a machine ot' the clmrnf'ter set. forth, 5 I of :in outer casingmounted therein. and lmring u hopper bottom, an' open endet! innercasing :arranged `short of the bottoni, partitions interposedhetweentlie casings :ind forming moterml Lhe pasmge of materiel from thecomp niente into the space bolo the inner ce?` ng, u screw mixer unilelevator oi'rangeii withinn the inner cna-ing und having u shaftprojecting above: the same, irrotary hearing foi-.tho

supporting the sinne magazines communicating with the receivl and thescrew conveyor, means Eer rotating "ate for controlling' the deltheshaft, und n frornthe upper endy of the livery of material:` :nnercasingi 9. In a machine of the character set.fortli,

- the combination with av casing, of @mixing screw operating therein,oppositely dispose agitator# carried bythe screw, mid means for feedingmateriel to the screw.'

10. In :i machine of the charaeterset and extending over the worm, undmeans for feeding material to the worin.'`

l1. forth, the combination with a casing, of n rotary mixing screwloczited therein :ind including a shaft, and a Wform mounted thereon,outwardly extending agitator blades secured to the shaft :ind locatedupon the worm, agitator blades secured to the outer portion of the worm,enrl means for feeding material tothe screw.

l2.- Izi a machine of the character set4 forth, the combination with anouter easing, of an inner open ended casing located there of the same, amixer and conveyor screw operating in the inner casing, gates locate-fibetween the casings und controlling to the screw, und means fordelivering water into the outer eosin; below the gates. v

13. `In :i machine of 'the character Set i'orth the coml'fimition *Vitha frame of or.'

nrinnged within then-mer casing and in the lower portion or" the einermeing, means for suspending said screw anti rotation, means for rotemeans for delivering; tion of the casing.

In testimony when',

ting the some, :ind water to the lower porw @unto affix my .o Witnesses.

. 1'l'itnesses S. L. CLARK, IsAnni. Gers.

In u machine ofthe vcharacter set ermiltinlf its P o im .1. .iALEXANDER. Y

the suppl),v of material

